... and durability Sulfuric acid flow meter (98%) with 4~20mA output formCharacteristics:1. l Measurement flow of liquid ... .B,Flange ,clamp,thread inserted connection etc.C,4~20mA,pulse,0~10V,RS485,HART etc. SBL ... target according to need. 10 ,LCD display.11,4-20mA, 0-10V, impulse, and RS485 outputs.12 ... ~2 years),external power supply of 24VDCOutput forms:4-20mA;pulse,0-10V;RS232/RS485;Hart protocol ...